ASP.NET XML parsing error only on FireFox

I get this wired error only when I try to access the web page in FireFox.. IE works just fine..

XML Parsing Error: not well-formed
Location: http://localhost/site/Home.aspx
Line Number 1, Column 2:<%@ Page Language="C#" 开发者_开发问答MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="Home.aspx.cs"

Am I missing something?

You seem to be accessing the page from the file system directly. Check the URLs in the address bar.

Not the right answer.. but upgraded to FF 3.6 and it works just fine..